---
title: "error"
description: "Mark semantics node that contains invalid input or error."
type: "function"
---

<div class='type'>Function</div>


<a id='references'></a>
<div class='sourceset sourceset-common'>Common</div>


```kotlin
fun SemanticsPropertyReceiver.error(description: String)
```


Mark semantics node that contains invalid input or error.

#### Parameters

| | |
| --- | --- |
| `description` | a localized description explaining an error to the accessibility user |